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中国科学院大学学报 ›› 2012, Vol. 29 ›› Issue (4): 518-523.DOI: 10.7523/j.issn.2095-6134.2012.4.013

• 信息与电子科学 • 上一篇    下一篇

LTE系统中一种利用DRX降低UE功耗的视频流调度方法

田建军, 邱玲   

  1. 中国科学技术大学电子工程与信息科学系个人通信与扩频实验室, 合肥 230027
  • 收稿日期:2011-04-07 修回日期:2011-05-16 发布日期:2012-07-15
  • 通讯作者: 邱玲
  • 基金资助:
    国家科技重大专项(2010ZX03002-003)资助

UE power saving scheduling method using DRX for video streaming in LTE

TIAN Jian-Jun, QIU Ling   

  1. PCN&SS Lab, Dept EEIS, University of Science and Technology of China, Hefei 230027, China
  • Received:2011-04-07 Revised:2011-05-16 Published:2012-07-15

摘要: 提出一种利用DRX(discontinuous reception)降低UE(user equipment)功耗的视频流调度方法,该方法在保证数据包时延要求的同时,减少了InactivityTimer的开启次数,增加了UE的休眠时间. 仿真结果表明,相比已有的DRX机制下的实时业务调度方法,该方法可以在丢包率相同的情况下,显著降低UE的功耗.

关键词: LTE, 功率节省, 视频流, 多用户调度

Abstract: A scheduling method for saving UE's power by using DRX for the video streaming is proposed in this paper. The times of starting/restarting I-Timer can be reduced while the delay requirement of a packet is guaranteed, which increases the sleeping time of a UE. Simulation results show that this method can significantly reduce the power consumption of a UE with the same packet loss rate.

Key words: LTE, power saving, video streaming, multi-user scheduling

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